With Finch missing - kidnapped by his hacker nemesis, Root (guest star AMY ACKER) in last season's finale cliffhanger - Reese enlists Detectives Carter and Fusco to join the search for his friend on the second season premiere. But can they continue without him? Meanwhile, The Machine never sleeps and issues a new number to Reese. KEN LEUNG (Lost) guest stars as the latest Person of Interest.
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